光学学报, 2020, 40 (19): 1904001, 网络出版: 2020-09-19
基于三维开口谐振环阵列和微流通道的太赫兹超材料吸收体传感器 
下载： 846次
Terahertz Metamaterial Absorber Sensor Based on Three-Dimensional Split-Ring Resonator Array and Microfluidic Channel
图 & 表
图 1. 基于三维SRR阵列和微流通道的太赫兹超材料(MM)吸波器的单元结构示意图
Fig. 1. Unit structural diagram of THz MM absorber based on three-dimensional SRR array and microfluidic channel
图 2. 三维金属SRR的结构示意图和尺寸标识
Fig. 2. Structural diagram and size identification of three-dimensional metallic SRR
图 3. 太赫兹超材料吸波器的吸收特性仿真曲线
Fig. 3. Simulated absorption characteristic curve of THz MM absorber
图 4. 液相分析物折射率从n=1变化到n=1.8时的谐振频率偏移及线性拟合结果
Fig. 4. Resonance frequency shift when refractive index of liquid-phase analyte changes from n=1 to n=1.8 and linear fitting result
图 5. 谐振频率处的电场分布和磁场分布。(a)电场分布;(b)磁场分布
Fig. 5. Electric field distribution and magnetic field distribution at resonance frequency.(a) Electric field distribution; (b) magnetic field distribution
图 6. 谐振频率处y=0截面的电场分布和谐振频率处x=0截面的磁场分布。 (a)谐振频率处y=0截面的电场分布;(b)谐振频率处x=0截面的磁场分布
Fig. 6. Electric field distribution of y=0 cross section at resonance frequency and magnetic field distribution of x=0 cross section at resonance frequency. (a) Electric field distribution of y=0 cross section at resonance frequency; (b) magnetic field distribution of x=0 cross section at resonance frequency
图 7. 微流通道的高度从32.7 μm增加到33.5 μm时传感器折射率频率灵敏度的变化
Fig. 7. Change of refractive index frequency sensitivity of sensor when height of microfluidic channel increases from 32.7 μm to 33.5 μm
表 1基于三维SRR阵列和微流通道的太赫兹超材料吸收体传感器与参考文献所报道的传感器的性能比较
Table1. Comparison of performance of THz MM absorber sensor based on three-dimensional SRR array and microfluidic channel with sensors reported in references
|
王鑫, 王俊林. 基于三维开口谐振环阵列和微流通道的太赫兹超材料吸收体传感器[J]. 光学学报, 2020, 40(19): 1904001. Xin Wang, Junlin Wang. Terahertz Metamaterial Absorber Sensor Based on Three-Dimensional Split-Ring Resonator Array and Microfluidic Channel[J]. Acta Optica Sinica, 2020, 40(19): 1904001.
PDF全文
